US4920544A - Delta-sigma modulator - Google Patents
Delta-sigma modulator Download PDFInfo
- Publication number
- US4920544A US4920544A US07/308,555 US30855589A US4920544A US 4920544 A US4920544 A US 4920544A US 30855589 A US30855589 A US 30855589A US 4920544 A US4920544 A US 4920544A
- Authority
- US
- United States
- Prior art keywords
- delta
- signal
- quantization
- sigma modulator
- sigma
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/02—Delta modulation, i.e. one-bit differential modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B14/00—Transmission systems not characterised by the medium used for transmission
- H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
- H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
- H04B14/046—Systems or methods for reducing noise or bandwidth
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M3/00—Conversion of analogue values to or from differential modulation
- H03M3/30—Delta-sigma modulation
- H03M3/39—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators
- H03M3/412—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution
- H03M3/414—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type
- H03M3/418—Structural details of delta-sigma modulators, e.g. incremental delta-sigma modulators characterised by the number of quantisers and their type and resolution having multiple quantisers arranged in cascaded loops, each of the second and further loops processing the quantisation error of the loop preceding it, i.e. multiple stage noise shaping [MASH] type all these quantisers being single bit quantisers
Abstract
Description
Dout=Ain+(1-z.sup.-1)Q (1)
Dout=Ain+(1-z.sup.-1).sup.2 Q (2)
Dout=Ain+(1-z.sup.-1).sup.3 Q (3)
DSQ1: C1=Ain+(1-z.sup.-1)B1 (4)
DSQ2: C2=Ain-(1-z.sup.-1)B2 (5)
DSQ3: C3=-1/2(B1+B2)+(1-z.sup.-1)B3 (6)
DSQ4: C4=-B3+(1-z.sup.-1)B4 (7)
F=Ain+(1-z.sup.-1).sup.2 Q1 (9)
F=Ain+Q1 (10)
J=-Q1+(1-z.sup.-1)Q2 (11)
J'+F=Ain+(1+z.sup.-1).sup.3 Q2 (13)
Claims (11)
F=Ain+(1-z.sup.-1).sup.2 Q1
J=-Q1+(1-z.sup.-1)Q2
J'+F=Ain+(1+z.sup.-1).sup.3 Q2.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63029291A JPH01204528A (en) | 1988-02-10 | 1988-02-10 | A/d converter |
JP63-29291 | 1988-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
US4920544A true US4920544A (en) | 1990-04-24 |
Family
ID=12272143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/308,555 Expired - Lifetime US4920544A (en) | 1988-02-10 | 1989-02-10 | Delta-sigma modulator |
Country Status (5)
Country | Link |
---|---|
US (1) | US4920544A (en) |
EP (1) | EP0328318B1 (en) |
JP (1) | JPH01204528A (en) |
KR (1) | KR910009070B1 (en) |
DE (1) | DE68916446D1 (en) |
Cited By (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030954A (en) * | 1990-09-17 | 1991-07-09 | General Electric Company | Double rate oversampled interpolative modulators for analog-to-digital conversion |
US5030952A (en) * | 1990-12-26 | 1991-07-09 | Motorola, Inc. | Sigma-delta type analog to digital converter with trimmed output and feedback |
US5061928A (en) * | 1988-11-09 | 1991-10-29 | Oy Nokia Ab | System and method of scaling error signals of caseload second order modulators |
US5124706A (en) * | 1989-09-15 | 1992-06-23 | Wavephore, Inc. | Analog to digital and digital to analog signal processors |
US5140325A (en) * | 1991-05-14 | 1992-08-18 | Industrial Technology Research Institute | Sigma-delta analog-to-digital converters based on switched-capacitor differentiators and delays |
US5148166A (en) * | 1990-04-06 | 1992-09-15 | General Electric Company | Third order sigma delta oversampled analog-to-digital converter network with low component sensitivity |
US5182558A (en) * | 1991-10-25 | 1993-01-26 | Halliburton Geophysical Services, Inc. | System for generating correction signals for use in forming low distortion analog signals |
US5208595A (en) * | 1991-08-21 | 1993-05-04 | Wavephore, Inc. | Digitally controlled adaptive slew rate delta modulator |
US5298900A (en) * | 1992-03-12 | 1994-03-29 | Siemens Aktiengesellschaft | Sigma-delta modulator |
US5303283A (en) * | 1991-09-03 | 1994-04-12 | General Electric Cgr S.A. | X-ray unit with high-voltage power supply device integrated into the casing |
US5392043A (en) * | 1993-10-04 | 1995-02-21 | General Electric Company | Double-rate sampled signal integrator |
US5442354A (en) * | 1993-08-26 | 1995-08-15 | Advanced Micro Devices, Inc. | Fourth-order cascaded sigma-delta modulator |
US5446460A (en) * | 1993-11-03 | 1995-08-29 | Advanced Micro Devices, Inc. | Fourth-order cascaded sigma-delta modulator |
US5621675A (en) * | 1994-11-02 | 1997-04-15 | Advanced Micro Devices, Inc. | Digital decimation and compensation filter system |
US5629701A (en) * | 1992-01-28 | 1997-05-13 | Tapani Ritoniemi | Cascaded Nth order (N>2) feedforward sigma-delta modulators |
US5646621A (en) * | 1994-11-02 | 1997-07-08 | Advanced Micro Devices, Inc. | Delta-sigma ADC with multi-stage decimation filter and gain compensation filter |
US5648779A (en) * | 1994-12-09 | 1997-07-15 | Advanced Micro Devices, Inc. | Sigma-delta modulator having reduced delay from input to output |
US5654711A (en) * | 1995-06-07 | 1997-08-05 | Asahi Kasei Microsystems Ltd. | Analog-to-digital converter with local feedback |
US5659314A (en) * | 1994-10-28 | 1997-08-19 | Sharp Kabushiki Kaisha | Delta sigma modulator using a switched capacitor |
US5721547A (en) * | 1996-01-04 | 1998-02-24 | Asahi Kasei Microsystems Ltd. | Analog-to-digital converter employing DC offset cancellation after modulation and before digital processing |
US5732004A (en) * | 1995-11-14 | 1998-03-24 | Advanced Micro Devices, Inc. | DSP architecture for a FIR-type filter and method |
US5736950A (en) * | 1995-01-31 | 1998-04-07 | The United States Of America As Represented By The Secretary Of The Navy | Sigma-delta modulator with tunable signal passband |
US5751615A (en) * | 1995-11-14 | 1998-05-12 | Advanced Micro Devices, Inc. | Implementation of a digital decimation filter and method |
US5760722A (en) * | 1995-01-31 | 1998-06-02 | The United States Of America As Represented By The Secretary Of The Navy | Distributed quantization noise transmission zeros in cascaded sigma-delta modulators |
US5826072A (en) * | 1995-11-13 | 1998-10-20 | Oasis Design, Inc. | Pipelined digital signal processor and signal processing system employing same |
US5835390A (en) * | 1995-12-27 | 1998-11-10 | Asahi Kasei Microsystems Co., Ltd | Merged multi-stage comb filter with reduced operational requirements |
WO1999020004A1 (en) * | 1997-10-09 | 1999-04-22 | Atmel Corporation | Signal processing method and device |
US6078621A (en) * | 1996-11-27 | 2000-06-20 | Sony Corp | Signal processors |
US6140950A (en) * | 1998-08-17 | 2000-10-31 | Linear Technology Corporation | Delta-sigma modulator with improved full-scale accuracy |
US6326912B1 (en) | 1999-09-24 | 2001-12-04 | Akm Semiconductor, Inc. | Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator |
US20020121994A1 (en) * | 2001-01-09 | 2002-09-05 | Bolton Jerry Thomas | Delta-sigma modulator system and method |
US6522277B2 (en) | 2001-02-05 | 2003-02-18 | Asahi Kasei Microsystems, Inc. | Circuit, system and method for performing dynamic element matching using bi-directional rotation within a data converter |
US6570518B2 (en) * | 2000-01-07 | 2003-05-27 | Skyworks Solutions, Inc. | Multiple stage delta sigma modulator |
US6600789B1 (en) | 1997-10-09 | 2003-07-29 | Atmel Corporation | Signal processing method and device |
US20040130471A1 (en) * | 2003-01-03 | 2004-07-08 | Samsung Electronics Co., Ltd. | Delta-Sigma modulator for reducing quantization noise and oversampling ratio (OSR) |
US20050093728A1 (en) * | 2003-09-11 | 2005-05-05 | Richard Gaggl | Adding circuit suitable for sigma-delta modulator circuits |
US20070171110A1 (en) * | 2006-01-20 | 2007-07-26 | Naotake Kitahira | Multi stage noise shaping quantizer |
US7508330B1 (en) * | 2007-10-11 | 2009-03-24 | Texas Instruments Incorporated | Apparatus and method for improving performance of sigma-delta modulators having non-ideal components |
US8400340B2 (en) * | 2011-07-18 | 2013-03-19 | Texas Instruments Incorporated | Achieving high dynamic range in a sigma delta analog to digital converter |
US9985646B1 (en) | 2017-10-18 | 2018-05-29 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
US10033400B1 (en) | 2017-10-18 | 2018-07-24 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4918454A (en) * | 1988-10-13 | 1990-04-17 | Crystal Semiconductor Corporation | Compensated capacitors for switched capacitor input of an analog-to-digital converter |
GB8900840D0 (en) * | 1989-01-16 | 1989-03-08 | British Telecomm | A/d converter |
CA2019297A1 (en) * | 1990-01-23 | 1991-07-23 | Brian M. Miller | Multiple-modulator fractional-n divider |
JP2626124B2 (en) * | 1990-02-02 | 1997-07-02 | 日本電気株式会社 | Oversampling type A / D conversion circuit |
US5065157A (en) * | 1990-04-06 | 1991-11-12 | General Electric Company | High order sigma delta oversampled analog-to-digital converter integrated circuit network with minimal power dissipation and chip area requirements |
US5148167A (en) * | 1990-04-06 | 1992-09-15 | General Electric Company | Sigma-delta oversampled analog-to-digital converter network with chopper stabilization |
KR100219021B1 (en) * | 1990-04-06 | 1999-09-01 | 제이 엘. 차스킨, 버나드 스나이더, 아더엠. 킹 | Third order sigma delta oversampled a/d converter network with low component sensitivity |
US5103229A (en) * | 1990-04-23 | 1992-04-07 | General Electric Company | Plural-order sigma-delta analog-to-digital converters using both single-bit and multiple-bit quantization |
US5084702A (en) * | 1990-11-01 | 1992-01-28 | General Electric Company | Plural-order sigma-delta analog-to-digital converter using both single-bit and multiple-bit quantizers |
FR2671680B1 (en) * | 1991-01-16 | 1993-04-30 | Texas Instruments France | DELTA-SIGMA MODULATOR, ESPECIALLY FOR ANALOG-TO-DIGITAL CONVERTER WITH HIGH DYNAMIC RANGE AND HIGH LINEARITY. |
GB9109637D0 (en) * | 1991-05-03 | 1991-06-26 | Marconi Gec Ltd | Analogue-to-digital and digital-to-analogue converters |
US5357196A (en) * | 1991-08-06 | 1994-10-18 | Jeco Company Limited | Circuit for converting a frequency of an input signal so a signal having a digital value corresponding to the frequency |
EP0577902B1 (en) * | 1992-07-10 | 1997-12-10 | International Business Machines Corporation | Decimation filter for a sigma-delta converter and A/D converter using the same |
DE4409708A1 (en) * | 1994-03-22 | 1995-09-28 | Teves Gmbh Alfred | Circuit arrangement for processing and A / D conversion of an analog signal |
US5841310A (en) * | 1997-04-08 | 1998-11-24 | Burr-Brown Corporation | Current-to-voltage integrator for analog-to-digital converter, and method |
US6670902B1 (en) * | 2002-06-04 | 2003-12-30 | Cirrus Logic, Inc. | Delta-sigma modulators with improved noise performance |
JP4214850B2 (en) * | 2002-08-20 | 2009-01-28 | ソニー株式会社 | Digital signal processing apparatus and digital signal processing method |
JP5711719B2 (en) * | 2012-10-30 | 2015-05-07 | 旭化成エレクトロニクス株式会社 | Sampling circuit and integration circuit |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4009475A (en) * | 1974-12-05 | 1977-02-22 | Hybrid Systems Corporation | Delta-sigma converter and decoder |
JPS58170115A (en) * | 1982-01-20 | 1983-10-06 | アルカテル・エヌ・ブイ | Delta-sigma converter with switching capacitor unit |
US4433311A (en) * | 1980-03-19 | 1984-02-21 | Matsushita Electric Industrial Co., Ltd. | Delta modulation system having reduced quantization noise |
US4528551A (en) * | 1979-11-28 | 1985-07-09 | International Telephone And Telegraph Corporation | Digital to analog converter employing sigma-delta modulation for use in telephone systems |
US4588981A (en) * | 1982-09-21 | 1986-05-13 | Patrice Senn | Double integration, delta-sigma, analog-digital coder |
US4772871A (en) * | 1986-05-16 | 1988-09-20 | Oki Electric Industry Co., Ltd. | Delta sigma modulator circuit for an analog-to-digital converter |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6031315A (en) * | 1983-07-29 | 1985-02-18 | Nec Corp | Second order delta sigma modulator |
EP0190694B1 (en) * | 1985-02-04 | 1991-06-12 | Nippon Telegraph And Telephone Corporation | Oversampling converter |
JPH0797748B2 (en) * | 1986-06-30 | 1995-10-18 | 日本電信電話株式会社 | A / D converter |
-
1988
- 1988-02-10 JP JP63029291A patent/JPH01204528A/en active Pending
-
1989
- 1989-02-03 EP EP89301064A patent/EP0328318B1/en not_active Expired - Lifetime
- 1989-02-03 DE DE68916446T patent/DE68916446D1/en not_active Expired - Lifetime
- 1989-02-10 KR KR1019890001542A patent/KR910009070B1/en not_active IP Right Cessation
- 1989-02-10 US US07/308,555 patent/US4920544A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4009475A (en) * | 1974-12-05 | 1977-02-22 | Hybrid Systems Corporation | Delta-sigma converter and decoder |
US4528551A (en) * | 1979-11-28 | 1985-07-09 | International Telephone And Telegraph Corporation | Digital to analog converter employing sigma-delta modulation for use in telephone systems |
US4433311A (en) * | 1980-03-19 | 1984-02-21 | Matsushita Electric Industrial Co., Ltd. | Delta modulation system having reduced quantization noise |
JPS58170115A (en) * | 1982-01-20 | 1983-10-06 | アルカテル・エヌ・ブイ | Delta-sigma converter with switching capacitor unit |
US4439756A (en) * | 1982-01-20 | 1984-03-27 | International Telephone And Telegraph Corporation | Delta-Sigma modulator with switch capacitor implementation |
US4588981A (en) * | 1982-09-21 | 1986-05-13 | Patrice Senn | Double integration, delta-sigma, analog-digital coder |
US4772871A (en) * | 1986-05-16 | 1988-09-20 | Oki Electric Industry Co., Ltd. | Delta sigma modulator circuit for an analog-to-digital converter |
Non-Patent Citations (2)
Title |
---|
Y. Matsuya et al., "SAMPLED-DATA ANALOG LOGIC", 1987 IEEE International Solid-State Circuits Conference, Feb. 1987, pp. 48-49. |
Y. Matsuya et al., SAMPLED DATA ANALOG LOGIC , 1987 IEEE International Solid State Circuits Conference, Feb. 1987, pp. 48 49. * |
Cited By (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5061928A (en) * | 1988-11-09 | 1991-10-29 | Oy Nokia Ab | System and method of scaling error signals of caseload second order modulators |
US5124706A (en) * | 1989-09-15 | 1992-06-23 | Wavephore, Inc. | Analog to digital and digital to analog signal processors |
US5148166A (en) * | 1990-04-06 | 1992-09-15 | General Electric Company | Third order sigma delta oversampled analog-to-digital converter network with low component sensitivity |
US5030954A (en) * | 1990-09-17 | 1991-07-09 | General Electric Company | Double rate oversampled interpolative modulators for analog-to-digital conversion |
US5030952A (en) * | 1990-12-26 | 1991-07-09 | Motorola, Inc. | Sigma-delta type analog to digital converter with trimmed output and feedback |
US5140325A (en) * | 1991-05-14 | 1992-08-18 | Industrial Technology Research Institute | Sigma-delta analog-to-digital converters based on switched-capacitor differentiators and delays |
US5457714A (en) * | 1991-08-21 | 1995-10-10 | Wavephore, Inc. | Software controlled adaptive delta modulator |
US5208595A (en) * | 1991-08-21 | 1993-05-04 | Wavephore, Inc. | Digitally controlled adaptive slew rate delta modulator |
US5303283A (en) * | 1991-09-03 | 1994-04-12 | General Electric Cgr S.A. | X-ray unit with high-voltage power supply device integrated into the casing |
US5182558A (en) * | 1991-10-25 | 1993-01-26 | Halliburton Geophysical Services, Inc. | System for generating correction signals for use in forming low distortion analog signals |
US5629701A (en) * | 1992-01-28 | 1997-05-13 | Tapani Ritoniemi | Cascaded Nth order (N>2) feedforward sigma-delta modulators |
US5298900A (en) * | 1992-03-12 | 1994-03-29 | Siemens Aktiengesellschaft | Sigma-delta modulator |
US5442354A (en) * | 1993-08-26 | 1995-08-15 | Advanced Micro Devices, Inc. | Fourth-order cascaded sigma-delta modulator |
US5392043A (en) * | 1993-10-04 | 1995-02-21 | General Electric Company | Double-rate sampled signal integrator |
US5446460A (en) * | 1993-11-03 | 1995-08-29 | Advanced Micro Devices, Inc. | Fourth-order cascaded sigma-delta modulator |
US5659314A (en) * | 1994-10-28 | 1997-08-19 | Sharp Kabushiki Kaisha | Delta sigma modulator using a switched capacitor |
US5621675A (en) * | 1994-11-02 | 1997-04-15 | Advanced Micro Devices, Inc. | Digital decimation and compensation filter system |
US5646621A (en) * | 1994-11-02 | 1997-07-08 | Advanced Micro Devices, Inc. | Delta-sigma ADC with multi-stage decimation filter and gain compensation filter |
US5648779A (en) * | 1994-12-09 | 1997-07-15 | Advanced Micro Devices, Inc. | Sigma-delta modulator having reduced delay from input to output |
US5736950A (en) * | 1995-01-31 | 1998-04-07 | The United States Of America As Represented By The Secretary Of The Navy | Sigma-delta modulator with tunable signal passband |
US5760722A (en) * | 1995-01-31 | 1998-06-02 | The United States Of America As Represented By The Secretary Of The Navy | Distributed quantization noise transmission zeros in cascaded sigma-delta modulators |
US5654711A (en) * | 1995-06-07 | 1997-08-05 | Asahi Kasei Microsystems Ltd. | Analog-to-digital converter with local feedback |
US5826072A (en) * | 1995-11-13 | 1998-10-20 | Oasis Design, Inc. | Pipelined digital signal processor and signal processing system employing same |
US5732004A (en) * | 1995-11-14 | 1998-03-24 | Advanced Micro Devices, Inc. | DSP architecture for a FIR-type filter and method |
US5751615A (en) * | 1995-11-14 | 1998-05-12 | Advanced Micro Devices, Inc. | Implementation of a digital decimation filter and method |
US5835390A (en) * | 1995-12-27 | 1998-11-10 | Asahi Kasei Microsystems Co., Ltd | Merged multi-stage comb filter with reduced operational requirements |
US5721547A (en) * | 1996-01-04 | 1998-02-24 | Asahi Kasei Microsystems Ltd. | Analog-to-digital converter employing DC offset cancellation after modulation and before digital processing |
US6078621A (en) * | 1996-11-27 | 2000-06-20 | Sony Corp | Signal processors |
WO1999020004A1 (en) * | 1997-10-09 | 1999-04-22 | Atmel Corporation | Signal processing method and device |
US6600789B1 (en) | 1997-10-09 | 2003-07-29 | Atmel Corporation | Signal processing method and device |
US6140950A (en) * | 1998-08-17 | 2000-10-31 | Linear Technology Corporation | Delta-sigma modulator with improved full-scale accuracy |
US6326912B1 (en) | 1999-09-24 | 2001-12-04 | Akm Semiconductor, Inc. | Analog-to-digital conversion using a multi-bit analog delta-sigma modulator combined with a one-bit digital delta-sigma modulator |
US6570518B2 (en) * | 2000-01-07 | 2003-05-27 | Skyworks Solutions, Inc. | Multiple stage delta sigma modulator |
US6920182B2 (en) * | 2001-01-09 | 2005-07-19 | Microtune (Texas), L.P. | Delta-sigma modulator system and method |
US20020121994A1 (en) * | 2001-01-09 | 2002-09-05 | Bolton Jerry Thomas | Delta-sigma modulator system and method |
US6522277B2 (en) | 2001-02-05 | 2003-02-18 | Asahi Kasei Microsystems, Inc. | Circuit, system and method for performing dynamic element matching using bi-directional rotation within a data converter |
US20040130471A1 (en) * | 2003-01-03 | 2004-07-08 | Samsung Electronics Co., Ltd. | Delta-Sigma modulator for reducing quantization noise and oversampling ratio (OSR) |
US6922161B2 (en) * | 2003-01-03 | 2005-07-26 | Samsung Electronics Co., Ltd. | Delta-Sigma modulator for reducing quantization noise and oversampling ratio (OSR) |
US20050093728A1 (en) * | 2003-09-11 | 2005-05-05 | Richard Gaggl | Adding circuit suitable for sigma-delta modulator circuits |
US7034729B2 (en) * | 2003-09-11 | 2006-04-25 | Infineon Technologies Ag | Adding circuit suitable for sigma-delta modulator circuits |
US20070171110A1 (en) * | 2006-01-20 | 2007-07-26 | Naotake Kitahira | Multi stage noise shaping quantizer |
US7355540B2 (en) * | 2006-01-20 | 2008-04-08 | Matsushita Electric Industrial Co., Ltd. | Multi stage noise shaping quantizer |
US7508330B1 (en) * | 2007-10-11 | 2009-03-24 | Texas Instruments Incorporated | Apparatus and method for improving performance of sigma-delta modulators having non-ideal components |
US20090096648A1 (en) * | 2007-10-11 | 2009-04-16 | Texas Instruments Incorporated | Apparatus and method for improving performance of sigma-delta modulators having non-ideal components |
US8400340B2 (en) * | 2011-07-18 | 2013-03-19 | Texas Instruments Incorporated | Achieving high dynamic range in a sigma delta analog to digital converter |
US9985646B1 (en) | 2017-10-18 | 2018-05-29 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
US10033400B1 (en) | 2017-10-18 | 2018-07-24 | Schweitzer Engineering Laboratories, Inc. | Analog-to-digital converter verification using quantization noise properties |
Also Published As
Publication number | Publication date |
---|---|
JPH01204528A (en) | 1989-08-17 |
EP0328318A2 (en) | 1989-08-16 |
KR910009070B1 (en) | 1991-10-28 |
EP0328318A3 (en) | 1990-11-14 |
KR890013901A (en) | 1989-09-26 |
DE68916446D1 (en) | 1994-08-04 |
EP0328318B1 (en) | 1994-06-29 |
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